How severe is CVE-2018-6393?

CVE-2018-6393 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-6393 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-6393?

CVE-2018-6393 primarily affects Sangoma Freepbx. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-6393?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-6393 published?

CVE-2018-6393 was published on 2018-01-29 and last updated on 2026-06-17.

CVE-2018-6393

CVE-2018-6393 is a high-severity vulnerability in Sangoma Freepbx with a CVSS 3.x base score of 7.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-89.

Key facts

Severity: High (CVSS 3.x base score 7.2)
CVSS v2: 6.5
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-89
Affected product: Sangoma Freepbx
Published: 2018-01-29
Last modified: 2026-06-17

Description

FreePBX 10.13.66-32bit and 14.0.1.24 (SNG7-PBX-64bit-1712-2) allow post-authentication SQL injection via the order parameter. NOTE: the vendor disputes this issue because it is intentional that a user can "directly modify SQL tables ... [or] run shell scripts ... once ... logged in to the administration interface; there is no need to try to find input validation errors.

Frequently asked questions

What is CVE-2018-6393?: FreePBX 10.13.66-32bit and 14.0.1.24 (SNG7-PBX-64bit-1712-2) allow post-authentication SQL injection via the order parameter. NOTE: the vendor disputes this issue because it is intentional that a user can "directly modify SQL tables ... [or] run shell scripts ... once ... logged in to the administration interface; there is no need to try to find input validation errors.
How severe is CVE-2018-6393?: CVE-2018-6393 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-6393 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-6393?: CVE-2018-6393 primarily affects Sangoma Freepbx. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-6393?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-6393 published?: CVE-2018-6393 was published on 2018-01-29 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:sangoma:freepbx:10.13.66:*:*:*:*:*:*:*
cpe:2.3:a:sangoma:freepbx:14.0.1.24:*:*:*:*:*:*:*

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